Canadian application, no grantCanada
Process for the production of purified lactic acid aqueous solutions starting from fermentation broths
CA 2070558 A1 · Owner: Mantovani, Giorgio · Inventors: Vaccari, Giuseppe; Campi, Anna Lisa; Mantovani, Giorgio
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Purified lactic acid aqueous solutions obtained by percolating fermentation broths through columns of appropriate ion-exchange resins. (HM 9110 EST) - 1 -
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1992
GrantedNo grant recorded
Term endedJune 5, 2012
Patent numberCA 2070558 A1
Classification (IPC)C12P7/56 +1 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.